Journal
ENERGY CONVERSION AND MANAGEMENT
Volume 268, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.enconman.2022.115964
Keywords
Life cycle assessment; Seawater reverse osmosis; Desalination; Anaerobic digestion; Photovoltaic energy; Wind energy
Categories
Funding
- University Research Board of the American University of Beirut [103780, 23308]
Ask authors/readers for more resources
Seawater desalination plants consume significant amounts of energy, primarily from fossil fuels, leading to significant environmental impact. The intermittent nature of renewable energy sources necessitates a combined fossil fuel-renewable energy mix. A study found that using a grid-wind energy combination can result in a 60% reduction in carbon footprint, while a grid-anaerobic digestion combination has the lowest unit product cost.
Seawater desalination plants consume significant amounts of energy sourced primarily from fossil fuels, leading to significant environmental impact. Life Cycle Assessment has been applied to desalination systems powered by a single renewable energy source with the underlying assumption of sufficiency of power supply. However, in several locations in the world the intermittent nature of these renewable sources prevents a full reliance on a single source and necessitates a combined fossil fuel-renewable energy mix. This study addresses this issue by performing life cycle assessment and preliminary costing analysis for different renewable-energy-grid combinations (photovoltaic-grid, wind-grid and anaerobic digestion-grid). Whilst the grid-anaerobic digestion and grid-photovoltaic scenarios provided significant improvements in all environmental impact categories, the grid-wind energy option resulted in the highest reduction whereby a 60% decrease in carbon footprint was observed. The unit product cost for the environmentally optimum grid-anaerobic digestion scheme was the lowest at 0.94 $/m(3), while the unit product cost for the grid-photovoltaic scheme was the most expensive at 1.47 $/m(3). An integrated photovoltaic-wind-anaerobic digestion scheme may offer further reduction in environmental impact and a potentially lower unit product cost.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available